In the arid West and Southwest of what is now the United States, white explorers and settlers encountered many Native Americans between the 1500s and 1800s.
Native Americans in the Western United States
Cowboy - Wikipedia
Native Americans in the West - The West 1850-1890
Nation to Nation: Treaties Between the United States and American Indian Nations
Cowboy - Wikipedia
Native Americans, Ethnipedia Wiki
Native American Cultures - Facts, Regions & Tribes
Origins of the American Indians
The Native American Experience